Well, the good news for Twilight is that there going to be a lot of playtesting already done for the game. Possibly even some full-up analysis. Working from that should make the process of balancing and improving, (e.g. fixing the risk/reward of the Nebula), much easier than with a completely new game.

Now, presuming the new edition of the game is successful and makes both princesses happy: Does Twilight have it in her to say something like "I seem to recall a number of promises...."